Abstract
Osaka Gas has decided to conduct a joint research project to use the bio-gas generated at the Kobe Higashinada Sewage Treatment Plant as city gas in collaboration with Kobe City and Kobelco Eco-solutions Co., Ltd. This joint research project aims to directly inject bio-gas from sewage treatment plant sludge (purified as per specifications for city gas) into city gas pipelines for wide distribution to local consumers. The project will be supported by subsidies from Toshi-gas Shinko Center.
Osaka Gas is also developing a hyper-thermal hydrolysis treatment for municipal solid waste coupled with a dry anaerobic digestion process for high efficiency in the bio-gas production process. Continuous testing at the Kyoto bio-gas plant, using a ton of waste per day, resulted in a 20% increase in bio-gas production, a 50% decrease in organic residues, and a 50% decrease in the waste water treatment volume. These are the recorded effects of the hyper-thermal hydrolysis treatment process.
